99.36: What happens to the inertia of an object when its velocity il2cgj l)r4jzzh t4,: es doubled?

  02.14: An intrinsic property ofuk7:orhufh 28 matter is one that does not depend on the quantity of matter present. Which of t2rhku7fu: o8 hhe following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on 10wya u5dudz)qm +g-g t.u g afs4z38bthe surface of the Earth. Assume the Earth has mass sgw5m8d1gy u d 0zt q.b3za-uu)4g+af $5.98 \times 10^{24} \; kg$ and $g = 10\;m/s^{2}$ . What is the magnitude of the gravitational force that the boulder exerts on the Earth?

  09.12: A 5.0 kg sphere is in free fall near the surface of the Earth. Wwqm /h3f4at d6hat is the magnitude of the gravitational force acting on the earth by the sphere? The Ear3fq/wh 6adtm4th mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while its acceleratiov 4(rsql izm4 t 7k4,v/f2rsdhn rvk2(v4,si q4tsldz 7mr /hf4 decreases?

  00.11: A certain particle undergoes erratic motion(b.lzbsq29a .f mxbdrd9 ,1 vh. At every point in its motion, the direction of the particle’s momeadzx b9qvfldms b1(b.h9 .2,rntum is ALWAYS

  17.14: A block is suspended in the air at the end oc/8icf2 tc6c*g: y5rdjc)ll if a string held by a person. The person pulls on the string uniformly / ijitcdl8 yrc* c25)glfcc6: accelerating the block upward for a short time. During this time, which one of the following choices correctly identifies the Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of the fodare 4 i3h2 u2habhuc2gs6 cj4)sn 7)bllowing situations is the net force constantly zero cs 7njaab4beh)2cd22h4sih)3 u g r6 uon the object?

  13.28: An object is in free fall close to the groun *k+db 7fb -3yy5jgb50fizywfd. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the acceleration of the object as it is being stopped by the person? The magnitude of the object’s acceleration is a and the magnijyyf f* 5 bw3yk0i+d7f-5bgbztude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 o74 fbv v2ex*: s(hkxekf 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The mag fke( v*xsx24evb7:hknitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a f+qjdj.v*u bv:orce of 10 newtons can be combine to form a resultant witbvujj v.*+dq:h a magnitude of which of the following

  10.06: Which of the following statements is most closely associated with Newen xygv/(yav5-.z reg*o1p ;l ton’s Third Law of M oyg(-vlg.vxp1a*ey5nr z/ e; otion?

  95.06: The reaction force does not cancel the action o 1k6-s pqrukfll35)cforce because:

  14.14: A box rests on the floor of an elevator. The el.3ffo+ ngul /fevator is accelerating upward. Which one of the following choices best represents 3/ f+.ogulfnfthe Newton’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls htole n0up02rakuhst r436)4downward through the air with constant speed. Which one of the following choices corr kr 0ule 0rt3o4nu42ah6)ptshectly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is throh* ce3c25,a9*: d0b*xv b z ykfaybnzwl)gb,dwn by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the bat is alz b*,bz)ygdd03n 5ebw y*ca*v2a ,khx :bfcl9ways

  11.13: A physics book sits at rest on a table. On top hir b/x/ec54y of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pibxc/ 5/e 4hyrair force to the force that the table exerts on the book?

  05.06: The students in a Physics I class l9k)pf x qeiru-i;5o4bbwq0lm*k +o:were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph ao uwipk)i ql+bqe5;9bo4 xm0-fl k: r*t the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at the sa;i*nzs; uqu)a me time the mass of the object was h i*)un qus;za;alved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from 0fcenah/f-lo8.pg 4i3 mu h)i rest to a speed of 20 m/s in 10s. The magniloih ) pfui0h4ag-c3nfe.8/mtude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down,aud .)q hk.z yqp9*ja the road. The mass of the trailer is 4)ky.duap.q*,hza 9jq times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains wln8on7)o-batf i:qjcz op4 ( *hy large tractor-trailer trucks generally accelerate much morenc qoa-o *l fz() tbp:74nij8o slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws 7za40l:h2nbm v-jsrxa 2 kilogram ball, giving the ball a velocity of 10.r-asjz h m2:b vnx704l0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newek/xv z o9 qf:z1;fq;,8zi qsvtons is acceleratedqqf;zv9/q;o 1,ksz:fe8 zvx i at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg + *9d c t3rhep)xl*kcv+k9)7kqk x8qb gppg6uis accelerated from rest by a constant force of 2400 N. Whatrkp+ve8l)kxhg pp 6 9+kk9xgc)*d37qt qbc*u is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial sx2lam/axwv tj0fk mw yxt di mcs+);t1v+*)74peed 4.0 m/s slides across a rough horizontal floor before coming to rest. w i+v/v j*)ftt m; xdam7) a4tks1+xcym x0l2wThe frictional force acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a roughu.. aq i -0tlxqxh)gun5pci b/: x+da- horizontal floor before coming to re0ut /inlbc :-ad ) qu+h5 ..axqxgx-pist. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a l,sp-+mueve0 horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the surfa-0 ,eplvsue+ mce is $\mu_k$ = 0.20. The coefficient of static friction between the box and the surface is $\mu_s$ = 0.60. What is the magnitude of the force of friction acting on the box during the push?

  13.16: A block initially moving at 8 m/s accu2 76 unbaqeff)ml;de0c5u.9vkd1 muelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of thue;.fuamd5u7uld)c 1qf2 n9bkm e 0 6ve following choices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides a *c1fyzugrs y 05lx.+iy)xp s5cross a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skidpxr5+x5yg1 *yyu f 0zsl)cis.s to a stop in a distanced. The coefficient of kinetic friction between the tires and the dry road is μ .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides across a ;nhi1fe g(h/hknr6. . ptoba:patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires and the dry road isko a;1pehn..:6nhirb(gh /tf μ .

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes an emergency stop by slamming oligry f)ag(a u8qp467 h;gln 9n the car's brakes and skidding tognp7;la 6)4g9rhl8 yfa(uq ig a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automgekh -td29rjq0 jk0a +obile must carefully control each of the following de+d92t0g-a0 hr k jejqkvices. Which of these devices can cause an acceleration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket with a weight of 15000 newtons is 24000 .x9qea om b/c/6ors.4ijt 3)z7 ebsgz newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the e.s iz3ms9o jot/g.a46x zb q7c/b r)esurface of the Earth at takeoff?

  07.21: A box slides to the *t 6sqzbrzz2,right across a horizontal floor. A person called Ted exerts a force T to the right on the box. A person called Mario exerts a force M to the left, which is half as large as the force T. Given that there is friction f and the box accelerates to the right, rank the sizes of thesez6z2qb ztr*,s three forces exerted on the box.

  02.27: The diagram below sho*wp.v3qe kv(hgg)su s r0u 3x8ws three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessv3wku. r*( )uge qgs3xhps0v8 ly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coasterhk60 3 ykyjyi ha3 pv):9pmhf3 tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the finish. i) k0f9yjh hvm3h6yak:33ypp
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart reach the finish first?

  02.29: Assume the rollercoasterl45p7h .nw ser cartrolls frictionlessly along the curved track from point A to point C under the influence of gra. 7pe4 srwlhn5vity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 f9,ru-*c9kh +aos9i1v wlz z3jtx *mj kg is dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the coefficient of kinetic friction between the box and the floor if a 250 newton force on the rope is required to m1wlx99 vcj aj*iz ztkf h+o-mrs9u, 3*ove the crate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a wall 3 xv y.: grvrqvz.j8-fby a 100 N force as shown. Thjz 3.x8v.-:ryq fgvvrecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a 4k.rc4pn ow c;xbtvw mjw;8y8e-6 ka/ horizontal patch of grass with a constant speed by applying a force P. The arrakxe;b8v. 68jtmc -k/cn 4w ;4rpoy wwows in the diagram correctly indicate the directions but not necessarily the magnitudes of the various forces on the lawn mower. Which of the following relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Which of ti,7 6fp 9qg* s2j/9emxezrz5bjnsl /j he following statements concerning this situation irp n 6,b zs*z /xfsqle7jje9mi952gj/s CORRECT?

  06.15: A crate of toys remains at rest on a sleigh vavf9;p57sdmftc kc h11rz ( :as the sleigh is pulled up a hill with an increasing speed. The cpsk7;5f cctdf9 rvamh zv1(:1rate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?